Advanced Motion Controls 12A8 - Fault Output; Inhibit Input; Low Power Supply Output for Hall Sensors

MNALAZIN-02 32
Operation / Getting Started
reachesthemaximumpeakcurrentvalue,thecurrentreferencepinwillread7.45V.The
commandtotheinternalcurrentloopcanbesolvedforbythefollowingequation:
Where:
I
command
‐commandcurrenttotheinternalcurrentloop
V
currentref
‐measuredvoltageatcurrentreferencepin
I
peak
‐peakcurrentvalueofAZdrive
Example Measurement
ThecurrentreferencepinonanAZdrivewithapeakcurrentvalueof12Aismeasuredtobe
2.63V.FollowingtheaboveequationtosolveforI
command
,thecommandcurrenttotheinternal
currentloopwouldbe4.24A.
Fault Output ThefaultoutputisavailableonallAZdrivemodels.Thispinprovidesa+5VTTL
outputthatwillbecomehighwhenthedriveissubjecttooneofthefollowingfaultconditions:
inhibit,invalidHallState,outputshortcircuit,overvoltage,overtemperature,orpower‐up
reset.Thispinwillremainlowwhenthedriveisenabled.
AZdrivesautomaticallyself‐resetonceoneoftheabove‐mentionedfaultconditionsare
removed.ForinstanceiftheDCpowersupplyrisesabovetheover‐voltageshutdownlevelof
anAZdrive,theFaultOutputwillgohigh,andthedrivewillbedisabled.OncetheDCpower
supplylevelisreturnedtoavaluebelowthedriveover‐voltageshutdownlevel,theFaultOutput
willbecomelow,andthedrivewillautomaticallybecomeenabled.
Inhibit Input TheinhibitinputpinisavailableonallAZdrivemodels.Thispinprovidesa+5VTTL
inputthatallowsausertoenable/disablethedrivebyeitherconnectingthispintogroundor
byapplyinga+5VDCvoltageleveltothispin,referencedtosignalground.Bydefault,allAZ
driveswillbeenabledifthispinishigh,anddisabledifthispinislow.Thislogiccanbe
reversed,however,byremovingthejumperJE1fromthedrivePCB.
Low Power Supply Output for Hall Sensors ThelowpowerHallSensorsupplyis
availableonthreephase(brushless)AZdrivesonly.Thispinprovidesa+6VDC,30mAoutput
thatcanbeusedtopowerHallSensors(consultthemotordatasheettofindoutwhich
feedbackwireistheHallSensorpowersupplywire).
Do not use this +6V supply to power an encoder. An encoder will require
a separate external power supply. Consult the encoder datasheet or
specifications to determine the encoder voltage and current
requirements. Typical values are +5VDC at 150mA.
I
command
V
current ref
I
peak
7.45V
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